sdl3-bindgen-sys
Safe HaskellNone
LanguageGHC2021

SDL3.Sys.Mouse

Description

Any GUI application has to deal with the mouse, and SDL provides functions to manage mouse input and the displayed cursor.

Most interactions with the mouse will come through the event subsystem. Moving a mouse generates an SDL_EVENT_MOUSE_MOTION event, pushing a button generates SDL_EVENT_MOUSE_BUTTON_DOWN, etc, but one can also query the current state of the mouse at any time with getMouseState.

For certain games, it's useful to disassociate the mouse cursor from mouse input. An FPS, for example, would not want the player's motion to stop as the mouse hits the edge of the window. For these scenarios, use setWindowRelativeMouseMode, which hides the cursor, grabs mouse input to the window, and reads mouse input no matter how far it moves.

Games that want the system to track the mouse but want to draw their own cursor can use hideCursor and showCursor. It might be more efficient to let the system manage the cursor, if possible, using setCursor with a custom image made through createColorCursor, or perhaps just a specific system cursor from createSystemCursor.

SDL can, on many platforms, differentiate between multiple connected mice, allowing for interesting input scenarios and multiplayer games. They can be enumerated with getMice, and SDL will send SDL_EVENT_MOUSE_ADDED and SDL_EVENT_MOUSE_REMOVED events as they are connected and unplugged.

Since many apps only care about basic mouse input, SDL offers a virtual mouse device for touch and pen input, which often can make a desktop application work on a touchscreen phone without any code changes. Apps that care about touch/pen separately from mouse input should filter out events with a which field of SDL_TOUCH_MOUSEID/SDL_PEN_MOUSEID. This is a unique ID for a mouse for the time it is connected to the system, and is never reused for the lifetime of the application.

If the mouse is disconnected and reconnected, it will get a new ID.

The value 0 is an invalid ID.

FFI conventions

Unsuffixed aliases are unsafe foreign imports; aliases suffixed Safe are safe. Functions whose callbacks fire during the call export only the Safe alias (the genuine unsafe import stays reachable under SDL3.Sys.Bindgen.Mouse.Unsafe); functions curated unsafe-only export only the unsuffixed one. Each alias's documentation records its flavor and rationale.

Full conventions: SDL3.Sys.

Since: 3.2.0

Synopsis

Documentation

Typed constants

pattern SDL_BUTTON_LMASK :: SDL_MouseButtonFlags Source #

Typed constant for macro SDL_BUTTON_LMASK. Combine with .|. from Data.Bits.

pattern SDL_BUTTON_MMASK :: SDL_MouseButtonFlags Source #

Typed constant for macro SDL_BUTTON_MMASK. Combine with .|. from Data.Bits.

pattern SDL_BUTTON_RMASK :: SDL_MouseButtonFlags Source #

Typed constant for macro SDL_BUTTON_RMASK. Combine with .|. from Data.Bits.

pattern SDL_BUTTON_X1MASK :: SDL_MouseButtonFlags Source #

Typed constant for macro SDL_BUTTON_X1MASK. Combine with .|. from Data.Bits.

pattern SDL_BUTTON_X2MASK :: SDL_MouseButtonFlags Source #

Typed constant for macro SDL_BUTTON_X2MASK. Combine with .|. from Data.Bits.

pattern SDL_TOUCH_MOUSEID :: SDL_MouseID Source #

Typed constant for macro SDL_TOUCH_MOUSEID (declared in SDL_touch.h).

pattern SDL_PEN_MOUSEID :: SDL_MouseID Source #

Typed constant for macro SDL_PEN_MOUSEID (declared in SDL_pen.h).

Function aliases

hasMouse :: IO Bool Source #

Return whether a mouse is currently connected.

Returns
true if a mouse is connected, false otherwise.
Thread safety
This function should only be called on the main thread.
See also
getMice

sdl3-bindgen-sys notes

Expand
FFI safety
Unsafe foreign import of SDL_HasMouse. The safe flavor is hasMouseSafe .
Scalars
The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
C declaration
SDL_HasMouse, defined at SDL3/SDL_mouse.h 226:34

Since: 3.2.0

hasMouseSafe :: IO Bool Source #

Return whether a mouse is currently connected.

Returns
true if a mouse is connected, false otherwise.
Thread safety
This function should only be called on the main thread.
See also
getMice

sdl3-bindgen-sys notes

Expand
FFI safety
Safe foreign import of SDL_HasMouse. The unsafe flavor is hasMouse .
Scalars
The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
C declaration
SDL_HasMouse, defined at SDL3/SDL_mouse.h 226:34

Since: 3.2.0

getMice Source #

Arguments

:: Ptr CInt
count
a pointer filled in with the number of mice returned, may be NULL.
-> IO (Ptr SDL_MouseID) 

Get a list of currently connected mice.

Note that this will include any device or virtual driver that includes mouse functionality, including some game controllers, KVM switches, etc. You should wait for input from a device before you consider it actively in use.

Returns
a 0 terminated array of mouse instance IDs or NULL on failure; call getError for more information. This should be freed with free when it is no longer needed.
Thread safety
This function should only be called on the main thread.
See also
getMouseNameForID, hasMouse

sdl3-bindgen-sys notes

Expand
FFI safety
Unsafe foreign import of SDL_GetMice. The safe flavor is getMiceSafe .
C declaration
SDL_GetMice, defined at SDL3/SDL_mouse.h 249:43

Since: 3.2.0

getMiceSafe Source #

Arguments

:: Ptr CInt
count
a pointer filled in with the number of mice returned, may be NULL.
-> IO (Ptr SDL_MouseID) 

Get a list of currently connected mice.

Note that this will include any device or virtual driver that includes mouse functionality, including some game controllers, KVM switches, etc. You should wait for input from a device before you consider it actively in use.

Returns
a 0 terminated array of mouse instance IDs or NULL on failure; call getError for more information. This should be freed with free when it is no longer needed.
Thread safety
This function should only be called on the main thread.
See also
getMouseNameForID, hasMouse

sdl3-bindgen-sys notes

Expand
FFI safety
Safe foreign import of SDL_GetMice. The unsafe flavor is getMice .
C declaration
SDL_GetMice, defined at SDL3/SDL_mouse.h 249:43

Since: 3.2.0

getMouseNameForID Source #

Arguments

:: SDL_MouseID
instance_id
the mouse instance ID.
-> IO (PtrConst CChar) 

Get the name of a mouse.

This function returns "" if the mouse doesn't have a name.

Returns
the name of the selected mouse, or NULL on failure; call getError for more information.
Thread safety
This function should only be called on the main thread.
See also
getMice

sdl3-bindgen-sys notes

Expand
FFI safety
Unsafe foreign import of SDL_GetMouseNameForID. The safe flavor is getMouseNameForIDSafe .
C declaration
SDL_GetMouseNameForID, defined at SDL3/SDL_mouse.h 266:42

Since: 3.2.0

getMouseNameForIDSafe Source #

Arguments

:: SDL_MouseID
instance_id
the mouse instance ID.
-> IO (PtrConst CChar) 

Get the name of a mouse.

This function returns "" if the mouse doesn't have a name.

Returns
the name of the selected mouse, or NULL on failure; call getError for more information.
Thread safety
This function should only be called on the main thread.
See also
getMice

sdl3-bindgen-sys notes

Expand
FFI safety
Safe foreign import of SDL_GetMouseNameForID. The unsafe flavor is getMouseNameForID .
C declaration
SDL_GetMouseNameForID, defined at SDL3/SDL_mouse.h 266:42

Since: 3.2.0

getMouseFocus :: IO (Ptr SDL_Window) Source #

Get the window which currently has mouse focus.

Returns
the window with mouse focus.
Thread safety
This function should only be called on the main thread.

sdl3-bindgen-sys notes

Expand
FFI safety
Unsafe foreign import of SDL_GetMouseFocus. The safe flavor is getMouseFocusSafe .
C declaration
SDL_GetMouseFocus, defined at SDL3/SDL_mouse.h 277:42

Since: 3.2.0

getMouseFocusSafe :: IO (Ptr SDL_Window) Source #

Get the window which currently has mouse focus.

Returns
the window with mouse focus.
Thread safety
This function should only be called on the main thread.

sdl3-bindgen-sys notes

Expand
FFI safety
Safe foreign import of SDL_GetMouseFocus. The unsafe flavor is getMouseFocus .
C declaration
SDL_GetMouseFocus, defined at SDL3/SDL_mouse.h 277:42

Since: 3.2.0

getMouseState Source #

Arguments

:: Ptr CFloat
x
a pointer to receive the SDL-cursor's x-position from the focused window's top left corner, can be NULL if unused.
-> Ptr CFloat
y
a pointer to receive the SDL-cursor's y-position from the focused window's top left corner, can be NULL if unused.
-> IO SDL_MouseButtonFlags 

Query SDL's cache for the synchronous mouse button state and the window-relative SDL-cursor position.

This function returns the cached synchronous state as SDL understands it from the last pump of the event queue.

To query the platform for immediate asynchronous state, use getGlobalMouseState.

Passing non-NULL pointers to x or y will write the destination with respective x or y coordinates relative to the focused window.

In Relative Mode, the SDL-cursor's position usually contradicts the platform-cursor's position as manually calculated from getGlobalMouseState and getWindowPosition.

Returns
a 32-bit bitmask of the button state that can be bitwise-compared against the SDL_BUTTON_MASK(X) macro.
Thread safety
This function should only be called on the main thread.
See also
getGlobalMouseState, getRelativeMouseState

sdl3-bindgen-sys notes

Expand
FFI safety
Unsafe foreign import of SDL_GetMouseState. The safe flavor is getMouseStateSafe .
C declaration
SDL_GetMouseState, defined at SDL3/SDL_mouse.h 310:50

Since: 3.2.0

getMouseStateSafe Source #

Arguments

:: Ptr CFloat
x
a pointer to receive the SDL-cursor's x-position from the focused window's top left corner, can be NULL if unused.
-> Ptr CFloat
y
a pointer to receive the SDL-cursor's y-position from the focused window's top left corner, can be NULL if unused.
-> IO SDL_MouseButtonFlags 

Query SDL's cache for the synchronous mouse button state and the window-relative SDL-cursor position.

This function returns the cached synchronous state as SDL understands it from the last pump of the event queue.

To query the platform for immediate asynchronous state, use getGlobalMouseState.

Passing non-NULL pointers to x or y will write the destination with respective x or y coordinates relative to the focused window.

In Relative Mode, the SDL-cursor's position usually contradicts the platform-cursor's position as manually calculated from getGlobalMouseState and getWindowPosition.

Returns
a 32-bit bitmask of the button state that can be bitwise-compared against the SDL_BUTTON_MASK(X) macro.
Thread safety
This function should only be called on the main thread.
See also
getGlobalMouseState, getRelativeMouseState

sdl3-bindgen-sys notes

Expand
FFI safety
Safe foreign import of SDL_GetMouseState. The unsafe flavor is getMouseState .
C declaration
SDL_GetMouseState, defined at SDL3/SDL_mouse.h 310:50

Since: 3.2.0

getGlobalMouseState Source #

Arguments

:: Ptr CFloat
x
a pointer to receive the platform-cursor's x-position from the desktop's top left corner, can be NULL if unused.
-> Ptr CFloat
y
a pointer to receive the platform-cursor's y-position from the desktop's top left corner, can be NULL if unused.
-> IO SDL_MouseButtonFlags 

Query the platform for the asynchronous mouse button state and the desktop-relative platform-cursor position.

This function immediately queries the platform for the most recent asynchronous state, more costly than retrieving SDL's cached state in getMouseState.

Passing non-NULL pointers to x or y will write the destination with respective x or y coordinates relative to the desktop.

In Relative Mode, the platform-cursor's position usually contradicts the SDL-cursor's position as manually calculated from getMouseState and getWindowPosition.

This function can be useful if you need to track the mouse outside of a specific window and captureMouse doesn't fit your needs. For example, it could be useful if you need to track the mouse while dragging a window, where coordinates relative to a window might not be in sync at all times.

Returns
a 32-bit bitmask of the button state that can be bitwise-compared against the SDL_BUTTON_MASK(X) macro.
Thread safety
This function should only be called on the main thread.
See also
captureMouse, getMouseState, getGlobalMouseState

sdl3-bindgen-sys notes

Expand
FFI safety
Unsafe foreign import of SDL_GetGlobalMouseState. The safe flavor is getGlobalMouseStateSafe .
C declaration
SDL_GetGlobalMouseState, defined at SDL3/SDL_mouse.h 347:50

Since: 3.2.0

getGlobalMouseStateSafe Source #

Arguments

:: Ptr CFloat
x
a pointer to receive the platform-cursor's x-position from the desktop's top left corner, can be NULL if unused.
-> Ptr CFloat
y
a pointer to receive the platform-cursor's y-position from the desktop's top left corner, can be NULL if unused.
-> IO SDL_MouseButtonFlags 

Query the platform for the asynchronous mouse button state and the desktop-relative platform-cursor position.

This function immediately queries the platform for the most recent asynchronous state, more costly than retrieving SDL's cached state in getMouseState.

Passing non-NULL pointers to x or y will write the destination with respective x or y coordinates relative to the desktop.

In Relative Mode, the platform-cursor's position usually contradicts the SDL-cursor's position as manually calculated from getMouseState and getWindowPosition.

This function can be useful if you need to track the mouse outside of a specific window and captureMouse doesn't fit your needs. For example, it could be useful if you need to track the mouse while dragging a window, where coordinates relative to a window might not be in sync at all times.

Returns
a 32-bit bitmask of the button state that can be bitwise-compared against the SDL_BUTTON_MASK(X) macro.
Thread safety
This function should only be called on the main thread.
See also
captureMouse, getMouseState, getGlobalMouseState

sdl3-bindgen-sys notes

Expand
FFI safety
Safe foreign import of SDL_GetGlobalMouseState. The unsafe flavor is getGlobalMouseState .
C declaration
SDL_GetGlobalMouseState, defined at SDL3/SDL_mouse.h 347:50

Since: 3.2.0

getRelativeMouseState Source #

Arguments

:: Ptr CFloat
x
a pointer to receive the x mouse delta accumulated since last call, can be NULL if unused.
-> Ptr CFloat
y
a pointer to receive the y mouse delta accumulated since last call, can be NULL if unused.
-> IO SDL_MouseButtonFlags 

Query SDL's cache for the synchronous mouse button state and accumulated mouse delta since last call.

This function returns the cached synchronous state as SDL understands it from the last pump of the event queue.

To query the platform for immediate asynchronous state, use getGlobalMouseState.

Passing non-NULL pointers to x or y will write the destination with respective x or y deltas accumulated since the last call to this function (or since event initialization).

This function is useful for reducing overhead by processing relative mouse inputs in one go per-frame instead of individually per-event, at the expense of losing the order between events within the frame (e.g. quickly pressing and releasing a button within the same frame).

Returns
a 32-bit bitmask of the button state that can be bitwise-compared against the SDL_BUTTON_MASK(X) macro.
Thread safety
This function should only be called on the main thread.
See also
getMouseState, getGlobalMouseState

sdl3-bindgen-sys notes

Expand
FFI safety
Unsafe foreign import of SDL_GetRelativeMouseState. The safe flavor is getRelativeMouseStateSafe .
C declaration
SDL_GetRelativeMouseState, defined at SDL3/SDL_mouse.h 382:50

Since: 3.2.0

getRelativeMouseStateSafe Source #

Arguments

:: Ptr CFloat
x
a pointer to receive the x mouse delta accumulated since last call, can be NULL if unused.
-> Ptr CFloat
y
a pointer to receive the y mouse delta accumulated since last call, can be NULL if unused.
-> IO SDL_MouseButtonFlags 

Query SDL's cache for the synchronous mouse button state and accumulated mouse delta since last call.

This function returns the cached synchronous state as SDL understands it from the last pump of the event queue.

To query the platform for immediate asynchronous state, use getGlobalMouseState.

Passing non-NULL pointers to x or y will write the destination with respective x or y deltas accumulated since the last call to this function (or since event initialization).

This function is useful for reducing overhead by processing relative mouse inputs in one go per-frame instead of individually per-event, at the expense of losing the order between events within the frame (e.g. quickly pressing and releasing a button within the same frame).

Returns
a 32-bit bitmask of the button state that can be bitwise-compared against the SDL_BUTTON_MASK(X) macro.
Thread safety
This function should only be called on the main thread.
See also
getMouseState, getGlobalMouseState

sdl3-bindgen-sys notes

Expand
FFI safety
Safe foreign import of SDL_GetRelativeMouseState. The unsafe flavor is getRelativeMouseState .
C declaration
SDL_GetRelativeMouseState, defined at SDL3/SDL_mouse.h 382:50

Since: 3.2.0

warpMouseInWindow Source #

Arguments

:: Ptr SDL_Window
window
the window to move the mouse into, or NULL for the current mouse focus.
-> Float
x
the x coordinate within the window.
-> Float
y
the y coordinate within the window.
-> IO () 

Move the mouse cursor to the given position within the window.

This function generates a mouse motion event if relative mode is not enabled. If relative mode is enabled, you can force mouse events for the warp by setting the SDL_HINT_MOUSE_RELATIVE_WARP_MOTION hint.

Note that this function will appear to succeed, but not actually move the mouse when used over Microsoft Remote Desktop.

Thread safety
This function should only be called on the main thread.
See also
warpMouseGlobal

sdl3-bindgen-sys notes

Expand
FFI safety
Unsafe foreign import of SDL_WarpMouseInWindow. The safe flavor is warpMouseInWindowSafe .
Scalars
The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
C declaration
SDL_WarpMouseInWindow, defined at SDL3/SDL_mouse.h 405:34

Since: 3.2.0

warpMouseInWindowSafe Source #

Arguments

:: Ptr SDL_Window
window
the window to move the mouse into, or NULL for the current mouse focus.
-> Float
x
the x coordinate within the window.
-> Float
y
the y coordinate within the window.
-> IO () 

Move the mouse cursor to the given position within the window.

This function generates a mouse motion event if relative mode is not enabled. If relative mode is enabled, you can force mouse events for the warp by setting the SDL_HINT_MOUSE_RELATIVE_WARP_MOTION hint.

Note that this function will appear to succeed, but not actually move the mouse when used over Microsoft Remote Desktop.

Thread safety
This function should only be called on the main thread.
See also
warpMouseGlobal

sdl3-bindgen-sys notes

Expand
FFI safety
Safe foreign import of SDL_WarpMouseInWindow. The unsafe flavor is warpMouseInWindow .
Scalars
The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
C declaration
SDL_WarpMouseInWindow, defined at SDL3/SDL_mouse.h 405:34

Since: 3.2.0

warpMouseGlobal Source #

Arguments

:: Float
x
the x coordinate.
-> Float
y
the y coordinate.
-> IO Bool 

Move the mouse to the given position in global screen space.

This function generates a mouse motion event.

A failure of this function usually means that it is unsupported by a platform.

Note that this function will appear to succeed, but not actually move the mouse when used over Microsoft Remote Desktop.

Returns
true on success or false on failure; call getError for more information.
Thread safety
This function should only be called on the main thread.
See also
warpMouseInWindow

sdl3-bindgen-sys notes

Expand
FFI safety
Unsafe foreign import of SDL_WarpMouseGlobal. The safe flavor is warpMouseGlobalSafe .
Scalars
The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
C declaration
SDL_WarpMouseGlobal, defined at SDL3/SDL_mouse.h 430:34

Since: 3.2.0

warpMouseGlobalSafe Source #

Arguments

:: Float
x
the x coordinate.
-> Float
y
the y coordinate.
-> IO Bool 

Move the mouse to the given position in global screen space.

This function generates a mouse motion event.

A failure of this function usually means that it is unsupported by a platform.

Note that this function will appear to succeed, but not actually move the mouse when used over Microsoft Remote Desktop.

Returns
true on success or false on failure; call getError for more information.
Thread safety
This function should only be called on the main thread.
See also
warpMouseInWindow

sdl3-bindgen-sys notes

Expand
FFI safety
Safe foreign import of SDL_WarpMouseGlobal. The unsafe flavor is warpMouseGlobal .
Scalars
The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
C declaration
SDL_WarpMouseGlobal, defined at SDL3/SDL_mouse.h 430:34

Since: 3.2.0

setRelativeMouseTransform Source #

Arguments

:: SDL_MouseMotionTransformCallback
callback
a callback used to transform relative mouse motion, or NULL for default behavior.
-> Ptr Void
userdata
a pointer that will be passed to callback.
-> IO Bool 

Set a user-defined function by which to transform relative mouse inputs.

This overrides the relative system scale and relative speed scale hints. Should be called prior to enabling relative mouse mode, fails otherwise.

Returns
true on success or false on failure; call getError for more information.
Thread safety
This function should only be called on the main thread.

sdl3-bindgen-sys notes

Expand
FFI safety
Unsafe foreign import of SDL_SetRelativeMouseTransform. The safe flavor is setRelativeMouseTransformSafe : registration; the transform runs during event pumping.
Scalars
The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
C declaration
SDL_SetRelativeMouseTransform, defined at SDL3/SDL_mouse.h 448:34

Since: 3.4.0

setRelativeMouseTransformSafe Source #

Arguments

:: SDL_MouseMotionTransformCallback
callback
a callback used to transform relative mouse motion, or NULL for default behavior.
-> Ptr Void
userdata
a pointer that will be passed to callback.
-> IO Bool 

Set a user-defined function by which to transform relative mouse inputs.

This overrides the relative system scale and relative speed scale hints. Should be called prior to enabling relative mouse mode, fails otherwise.

Returns
true on success or false on failure; call getError for more information.
Thread safety
This function should only be called on the main thread.

sdl3-bindgen-sys notes

Expand
FFI safety
Safe foreign import of SDL_SetRelativeMouseTransform. The unsafe flavor is setRelativeMouseTransform : registration; the transform runs during event pumping.
Scalars
The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
C declaration
SDL_SetRelativeMouseTransform, defined at SDL3/SDL_mouse.h 448:34

Since: 3.4.0

setWindowRelativeMouseMode Source #

Arguments

:: Ptr SDL_Window
window
the window to change.
-> Bool
enabled
true to enable relative mode, false to disable.
-> IO Bool 

Set relative mouse mode for a window.

While the window has focus and relative mouse mode is enabled, the cursor is hidden, the mouse position is constrained to the window, and SDL will report continuous relative mouse motion even if the mouse is at the edge of the window.

If you'd like to keep the mouse position fixed while in relative mode you can use setWindowMouseRect. If you'd like the cursor to be at a specific location when relative mode ends, you should use warpMouseInWindow before disabling relative mode.

This function will flush any pending mouse motion for this window.

Returns
true on success or false on failure; call getError for more information.
Thread safety
This function should only be called on the main thread.
See also
getWindowRelativeMouseMode

sdl3-bindgen-sys notes

Expand
FFI safety
Unsafe foreign import of SDL_SetWindowRelativeMouseMode. The safe flavor is setWindowRelativeMouseModeSafe .
Scalars
The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
C declaration
SDL_SetWindowRelativeMouseMode, defined at SDL3/SDL_mouse.h 476:34

Since: 3.2.0

setWindowRelativeMouseModeSafe Source #

Arguments

:: Ptr SDL_Window
window
the window to change.
-> Bool
enabled
true to enable relative mode, false to disable.
-> IO Bool 

Set relative mouse mode for a window.

While the window has focus and relative mouse mode is enabled, the cursor is hidden, the mouse position is constrained to the window, and SDL will report continuous relative mouse motion even if the mouse is at the edge of the window.

If you'd like to keep the mouse position fixed while in relative mode you can use setWindowMouseRect. If you'd like the cursor to be at a specific location when relative mode ends, you should use warpMouseInWindow before disabling relative mode.

This function will flush any pending mouse motion for this window.

Returns
true on success or false on failure; call getError for more information.
Thread safety
This function should only be called on the main thread.
See also
getWindowRelativeMouseMode

sdl3-bindgen-sys notes

Expand
FFI safety
Safe foreign import of SDL_SetWindowRelativeMouseMode. The unsafe flavor is setWindowRelativeMouseMode .
Scalars
The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
C declaration
SDL_SetWindowRelativeMouseMode, defined at SDL3/SDL_mouse.h 476:34

Since: 3.2.0

getWindowRelativeMouseMode Source #

Arguments

:: Ptr SDL_Window
window
the window to query.
-> IO Bool 

Query whether relative mouse mode is enabled for a window.

Returns
true if relative mode is enabled for a window or false otherwise.
Thread safety
This function should only be called on the main thread.
See also
setWindowRelativeMouseMode

sdl3-bindgen-sys notes

Expand
FFI safety
Unsafe foreign import of SDL_GetWindowRelativeMouseMode. The safe flavor is getWindowRelativeMouseModeSafe .
Scalars
The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
C declaration
SDL_GetWindowRelativeMouseMode, defined at SDL3/SDL_mouse.h 490:34

Since: 3.2.0

getWindowRelativeMouseModeSafe Source #

Arguments

:: Ptr SDL_Window
window
the window to query.
-> IO Bool 

Query whether relative mouse mode is enabled for a window.

Returns
true if relative mode is enabled for a window or false otherwise.
Thread safety
This function should only be called on the main thread.
See also
setWindowRelativeMouseMode

sdl3-bindgen-sys notes

Expand
FFI safety
Safe foreign import of SDL_GetWindowRelativeMouseMode. The unsafe flavor is getWindowRelativeMouseMode .
Scalars
The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
C declaration
SDL_GetWindowRelativeMouseMode, defined at SDL3/SDL_mouse.h 490:34

Since: 3.2.0

captureMouse Source #

Arguments

:: Bool
enabled
true to enable capturing, false to disable.
-> IO Bool 

Capture the mouse and to track input outside an SDL window.

Capturing enables your app to obtain mouse events globally, instead of just within your window. Not all video targets support this function. When capturing is enabled, the current window will get all mouse events, but unlike relative mode, no change is made to the cursor and it is not restrained to your window.

This function may also deny mouse input to other windows both those in your application and others on the system so you should use this function sparingly, and in small bursts. For example, you might want to track the mouse while the user is dragging something, until the user releases a mouse button. It is not recommended that you capture the mouse for long periods of time, such as the entire time your app is running. For that, you should probably use setWindowRelativeMouseMode or setWindowMouseGrab, depending on your goals.

While captured, mouse events still report coordinates relative to the current (foreground) window, but those coordinates may be outside the bounds of the window (including negative values). Capturing is only allowed for the foreground window. If the window loses focus while capturing, the capture will be disabled automatically.

While capturing is enabled, the current window will have the SDL_WINDOW_MOUSE_CAPTURE flag set.

Please note that SDL will attempt to "auto capture" the mouse while the user is pressing a button; this is to try and make mouse behavior more consistent between platforms, and deal with the common case of a user dragging the mouse outside of the window. This means that if you are calling captureMouse only to deal with this situation, you do not have to (although it is safe to do so). If this causes problems for your app, you can disable auto capture by setting the SDL_HINT_MOUSE_AUTO_CAPTURE hint to zero.

Returns
true on success or false on failure; call getError for more information.
Thread safety
This function should only be called on the main thread.
See also
getGlobalMouseState

sdl3-bindgen-sys notes

Expand
FFI safety
Unsafe foreign import of SDL_CaptureMouse. The safe flavor is captureMouseSafe .
Scalars
The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
C declaration
SDL_CaptureMouse, defined at SDL3/SDL_mouse.h 538:34

Since: 3.2.0

captureMouseSafe Source #

Arguments

:: Bool
enabled
true to enable capturing, false to disable.
-> IO Bool 

Capture the mouse and to track input outside an SDL window.

Capturing enables your app to obtain mouse events globally, instead of just within your window. Not all video targets support this function. When capturing is enabled, the current window will get all mouse events, but unlike relative mode, no change is made to the cursor and it is not restrained to your window.

This function may also deny mouse input to other windows both those in your application and others on the system so you should use this function sparingly, and in small bursts. For example, you might want to track the mouse while the user is dragging something, until the user releases a mouse button. It is not recommended that you capture the mouse for long periods of time, such as the entire time your app is running. For that, you should probably use setWindowRelativeMouseMode or setWindowMouseGrab, depending on your goals.

While captured, mouse events still report coordinates relative to the current (foreground) window, but those coordinates may be outside the bounds of the window (including negative values). Capturing is only allowed for the foreground window. If the window loses focus while capturing, the capture will be disabled automatically.

While capturing is enabled, the current window will have the SDL_WINDOW_MOUSE_CAPTURE flag set.

Please note that SDL will attempt to "auto capture" the mouse while the user is pressing a button; this is to try and make mouse behavior more consistent between platforms, and deal with the common case of a user dragging the mouse outside of the window. This means that if you are calling captureMouse only to deal with this situation, you do not have to (although it is safe to do so). If this causes problems for your app, you can disable auto capture by setting the SDL_HINT_MOUSE_AUTO_CAPTURE hint to zero.

Returns
true on success or false on failure; call getError for more information.
Thread safety
This function should only be called on the main thread.
See also
getGlobalMouseState

sdl3-bindgen-sys notes

Expand
FFI safety
Safe foreign import of SDL_CaptureMouse. The unsafe flavor is captureMouse .
Scalars
The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
C declaration
SDL_CaptureMouse, defined at SDL3/SDL_mouse.h 538:34

Since: 3.2.0

createCursor Source #

Arguments

:: PtrConst Uint8
data
the color value for each pixel of the cursor.
-> PtrConst Uint8
mask
the mask value for each pixel of the cursor.
-> Int32
w
the width of the cursor.
-> Int32
h
the height of the cursor.
-> Int32
hot_x
the x-axis offset from the left of the cursor image to the mouse x position, in the range of 0 to w - 1.
-> Int32
hot_y
the y-axis offset from the top of the cursor image to the mouse y position, in the range of 0 to h - 1.
-> IO (Ptr SDL_Cursor) 

Create a cursor using the specified bitmap data and mask (in MSB format).

mask has to be in MSB (Most Significant Bit) format.

The cursor width (w) must be a multiple of 8 bits.

The cursor is created in black and white according to the following:

  • data=0, mask=1: white
  • data=1, mask=1: black
  • data=0, mask=0: transparent
  • data=1, mask=0: inverted color if possible, black if not.

Cursors created with this function must be freed with destroyCursor.

If you want to have a color cursor, or create your cursor from an SDL_Surface, you should use createColorCursor. Alternately, you can hide the cursor and draw your own as part of your game's rendering, but it will be bound to the framerate.

Also, createSystemCursor is available, which provides several readily-available system cursors to pick from.

Returns
a new cursor with the specified parameters on success or NULL on failure; call getError for more information.
Thread safety
This function should only be called on the main thread.
See also
createAnimatedCursor, createColorCursor, createSystemCursor, destroyCursor, setCursor

sdl3-bindgen-sys notes

Expand
FFI safety
Unsafe foreign import of SDL_CreateCursor. The safe flavor is createCursorSafe .
Scalars
The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
C declaration
SDL_CreateCursor, defined at SDL3/SDL_mouse.h 585:42

Since: 3.2.0

createCursorSafe Source #

Arguments

:: PtrConst Uint8
data
the color value for each pixel of the cursor.
-> PtrConst Uint8
mask
the mask value for each pixel of the cursor.
-> Int32
w
the width of the cursor.
-> Int32
h
the height of the cursor.
-> Int32
hot_x
the x-axis offset from the left of the cursor image to the mouse x position, in the range of 0 to w - 1.
-> Int32
hot_y
the y-axis offset from the top of the cursor image to the mouse y position, in the range of 0 to h - 1.
-> IO (Ptr SDL_Cursor) 

Create a cursor using the specified bitmap data and mask (in MSB format).

mask has to be in MSB (Most Significant Bit) format.

The cursor width (w) must be a multiple of 8 bits.

The cursor is created in black and white according to the following:

  • data=0, mask=1: white
  • data=1, mask=1: black
  • data=0, mask=0: transparent
  • data=1, mask=0: inverted color if possible, black if not.

Cursors created with this function must be freed with destroyCursor.

If you want to have a color cursor, or create your cursor from an SDL_Surface, you should use createColorCursor. Alternately, you can hide the cursor and draw your own as part of your game's rendering, but it will be bound to the framerate.

Also, createSystemCursor is available, which provides several readily-available system cursors to pick from.

Returns
a new cursor with the specified parameters on success or NULL on failure; call getError for more information.
Thread safety
This function should only be called on the main thread.
See also
createAnimatedCursor, createColorCursor, createSystemCursor, destroyCursor, setCursor

sdl3-bindgen-sys notes

Expand
FFI safety
Safe foreign import of SDL_CreateCursor. The unsafe flavor is createCursor .
Scalars
The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
C declaration
SDL_CreateCursor, defined at SDL3/SDL_mouse.h 585:42

Since: 3.2.0

createColorCursor Source #

Arguments

:: Ptr SDL_Surface
surface
an SDL_Surface structure representing the cursor image.
-> Int32
hot_x
the x position of the cursor hot spot.
-> Int32
hot_y
the y position of the cursor hot spot.
-> IO (Ptr SDL_Cursor) 

Create a color cursor.

If this function is passed a surface with alternate representations added with addSurfaceAlternateImage, the surface will be interpreted as the content to be used for 100% display scale, and the alternate representations will be used for high DPI situations if SDL_HINT_MOUSE_DPI_SCALE_CURSORS is enabled. For example, if the original surface is 32x32, then on a 2x macOS display or 200% display scale on Windows, a 64x64 version of the image will be used, if available. If a matching version of the image isn't available, the closest larger size image will be downscaled to the appropriate size and be used instead, if available. Otherwise, the closest smaller image will be upscaled and be used instead.

Returns
the new cursor on success or NULL on failure; call getError for more information.
Thread safety
This function should only be called on the main thread.
See also
addSurfaceAlternateImage, createAnimatedCursor, createCursor, createSystemCursor, destroyCursor, setCursor

sdl3-bindgen-sys notes

Expand
FFI safety
Unsafe foreign import of SDL_CreateColorCursor. The safe flavor is createColorCursorSafe .
Scalars
The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
C declaration
SDL_CreateColorCursor, defined at SDL3/SDL_mouse.h 622:42

Since: 3.2.0

createColorCursorSafe Source #

Arguments

:: Ptr SDL_Surface
surface
an SDL_Surface structure representing the cursor image.
-> Int32
hot_x
the x position of the cursor hot spot.
-> Int32
hot_y
the y position of the cursor hot spot.
-> IO (Ptr SDL_Cursor) 

Create a color cursor.

If this function is passed a surface with alternate representations added with addSurfaceAlternateImage, the surface will be interpreted as the content to be used for 100% display scale, and the alternate representations will be used for high DPI situations if SDL_HINT_MOUSE_DPI_SCALE_CURSORS is enabled. For example, if the original surface is 32x32, then on a 2x macOS display or 200% display scale on Windows, a 64x64 version of the image will be used, if available. If a matching version of the image isn't available, the closest larger size image will be downscaled to the appropriate size and be used instead, if available. Otherwise, the closest smaller image will be upscaled and be used instead.

Returns
the new cursor on success or NULL on failure; call getError for more information.
Thread safety
This function should only be called on the main thread.
See also
addSurfaceAlternateImage, createAnimatedCursor, createCursor, createSystemCursor, destroyCursor, setCursor

sdl3-bindgen-sys notes

Expand
FFI safety
Safe foreign import of SDL_CreateColorCursor. The unsafe flavor is createColorCursor .
Scalars
The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
C declaration
SDL_CreateColorCursor, defined at SDL3/SDL_mouse.h 622:42

Since: 3.2.0

createAnimatedCursor Source #

Arguments

:: Ptr SDL_CursorFrameInfo
frames
an array of cursor images composing the animation.
-> Int32
frame_count
the number of frames in the sequence.
-> Int32
hot_x
the x position of the cursor hot spot.
-> Int32
hot_y
the y position of the cursor hot spot.
-> IO (Ptr SDL_Cursor) 

Create an animated color cursor.

Animated cursors are composed of a sequential array of frames, specified as surfaces and durations in an array of SDL_CursorFrameInfo structs. The hot spot coordinates are universal to all frames, and all frames must have the same dimensions.

Frame durations are specified in milliseconds. A duration of 0 implies an infinite frame time, and the animation will stop on that frame. To create a one-shot animation, set the duration of the last frame in the sequence to 0.

If this function is passed surfaces with alternate representations added with addSurfaceAlternateImage, the surfaces will be interpreted as the content to be used for 100% display scale, and the alternate representations will be used for high DPI situations. For example, if the original surfaces are 32x32, then on a 2x macOS display or 200% display scale on Windows, a 64x64 version of the image will be used, if available. If a matching version of the image isn't available, the closest larger size image will be downscaled to the appropriate size and be used instead, if available. Otherwise, the closest smaller image will be upscaled and be used instead.

If the underlying platform does not support animated cursors, this function will fall back to creating a static color cursor using the first frame in the sequence.

Returns
the new cursor on success or NULL on failure; call getError for more information.
Thread safety
This function should only be called on the main thread.
See also
addSurfaceAlternateImage, createCursor, createColorCursor, createSystemCursor, destroyCursor, setCursor

sdl3-bindgen-sys notes

Expand
FFI safety
Unsafe foreign import of SDL_CreateAnimatedCursor. The safe flavor is createAnimatedCursorSafe .
Scalars
The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
C declaration
SDL_CreateAnimatedCursor, defined at SDL3/SDL_mouse.h 672:41

Since: 3.4.0

createAnimatedCursorSafe Source #

Arguments

:: Ptr SDL_CursorFrameInfo
frames
an array of cursor images composing the animation.
-> Int32
frame_count
the number of frames in the sequence.
-> Int32
hot_x
the x position of the cursor hot spot.
-> Int32
hot_y
the y position of the cursor hot spot.
-> IO (Ptr SDL_Cursor) 

Create an animated color cursor.

Animated cursors are composed of a sequential array of frames, specified as surfaces and durations in an array of SDL_CursorFrameInfo structs. The hot spot coordinates are universal to all frames, and all frames must have the same dimensions.

Frame durations are specified in milliseconds. A duration of 0 implies an infinite frame time, and the animation will stop on that frame. To create a one-shot animation, set the duration of the last frame in the sequence to 0.

If this function is passed surfaces with alternate representations added with addSurfaceAlternateImage, the surfaces will be interpreted as the content to be used for 100% display scale, and the alternate representations will be used for high DPI situations. For example, if the original surfaces are 32x32, then on a 2x macOS display or 200% display scale on Windows, a 64x64 version of the image will be used, if available. If a matching version of the image isn't available, the closest larger size image will be downscaled to the appropriate size and be used instead, if available. Otherwise, the closest smaller image will be upscaled and be used instead.

If the underlying platform does not support animated cursors, this function will fall back to creating a static color cursor using the first frame in the sequence.

Returns
the new cursor on success or NULL on failure; call getError for more information.
Thread safety
This function should only be called on the main thread.
See also
addSurfaceAlternateImage, createCursor, createColorCursor, createSystemCursor, destroyCursor, setCursor

sdl3-bindgen-sys notes

Expand
FFI safety
Safe foreign import of SDL_CreateAnimatedCursor. The unsafe flavor is createAnimatedCursor .
Scalars
The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
C declaration
SDL_CreateAnimatedCursor, defined at SDL3/SDL_mouse.h 672:41

Since: 3.4.0

createSystemCursor Source #

Arguments

:: SDL_SystemCursor
id
an SDL_SystemCursor enum value.
-> IO (Ptr SDL_Cursor) 

Create a system cursor.

Returns
a cursor on success or NULL on failure; call getError for more information.
Thread safety
This function should only be called on the main thread.
See also
destroyCursor

sdl3-bindgen-sys notes

Expand
FFI safety
Unsafe foreign import of SDL_CreateSystemCursor. The safe flavor is createSystemCursorSafe .
C declaration
SDL_CreateSystemCursor, defined at SDL3/SDL_mouse.h 690:42

Since: 3.2.0

createSystemCursorSafe Source #

Arguments

:: SDL_SystemCursor
id
an SDL_SystemCursor enum value.
-> IO (Ptr SDL_Cursor) 

Create a system cursor.

Returns
a cursor on success or NULL on failure; call getError for more information.
Thread safety
This function should only be called on the main thread.
See also
destroyCursor

sdl3-bindgen-sys notes

Expand
FFI safety
Safe foreign import of SDL_CreateSystemCursor. The unsafe flavor is createSystemCursor .
C declaration
SDL_CreateSystemCursor, defined at SDL3/SDL_mouse.h 690:42

Since: 3.2.0

setCursor Source #

Arguments

:: Ptr SDL_Cursor
cursor
a cursor to make active.
-> IO Bool 

Set the active cursor.

This function sets the currently active cursor to the specified one. If the cursor is currently visible, the change will be immediately represented on the display. SDL_SetCursor(NULL) can be used to force cursor redraw, if this is desired for any reason.

Returns
true on success or false on failure; call getError for more information.
Thread safety
This function should only be called on the main thread.
See also
getCursor

sdl3-bindgen-sys notes

Expand
FFI safety
Unsafe foreign import of SDL_SetCursor. The safe flavor is setCursorSafe .
Scalars
The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
C declaration
SDL_SetCursor, defined at SDL3/SDL_mouse.h 710:34

Since: 3.2.0

setCursorSafe Source #

Arguments

:: Ptr SDL_Cursor
cursor
a cursor to make active.
-> IO Bool 

Set the active cursor.

This function sets the currently active cursor to the specified one. If the cursor is currently visible, the change will be immediately represented on the display. SDL_SetCursor(NULL) can be used to force cursor redraw, if this is desired for any reason.

Returns
true on success or false on failure; call getError for more information.
Thread safety
This function should only be called on the main thread.
See also
getCursor

sdl3-bindgen-sys notes

Expand
FFI safety
Safe foreign import of SDL_SetCursor. The unsafe flavor is setCursor .
Scalars
The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
C declaration
SDL_SetCursor, defined at SDL3/SDL_mouse.h 710:34

Since: 3.2.0

getCursor :: IO (Ptr SDL_Cursor) Source #

Get the active cursor.

This function returns a pointer to the current cursor which is owned by the library. It is not necessary to free the cursor with destroyCursor.

Returns
the active cursor or NULL if there is no mouse.
Thread safety
This function should only be called on the main thread.
See also
setCursor

sdl3-bindgen-sys notes

Expand
FFI safety
Unsafe foreign import of SDL_GetCursor. The safe flavor is getCursorSafe .
C declaration
SDL_GetCursor, defined at SDL3/SDL_mouse.h 726:42

Since: 3.2.0

getCursorSafe :: IO (Ptr SDL_Cursor) Source #

Get the active cursor.

This function returns a pointer to the current cursor which is owned by the library. It is not necessary to free the cursor with destroyCursor.

Returns
the active cursor or NULL if there is no mouse.
Thread safety
This function should only be called on the main thread.
See also
setCursor

sdl3-bindgen-sys notes

Expand
FFI safety
Safe foreign import of SDL_GetCursor. The unsafe flavor is getCursor .
C declaration
SDL_GetCursor, defined at SDL3/SDL_mouse.h 726:42

Since: 3.2.0

getDefaultCursor :: IO (Ptr SDL_Cursor) Source #

Get the default cursor.

You do not have to call destroyCursor on the return value, but it is safe to do so.

Returns
the default cursor on success or NULL on failure; call getError for more information.
Thread safety
This function should only be called on the main thread.

sdl3-bindgen-sys notes

Expand
FFI safety
Unsafe foreign import of SDL_GetDefaultCursor. The safe flavor is getDefaultCursorSafe .
C declaration
SDL_GetDefaultCursor, defined at SDL3/SDL_mouse.h 741:42

Since: 3.2.0

getDefaultCursorSafe :: IO (Ptr SDL_Cursor) Source #

Get the default cursor.

You do not have to call destroyCursor on the return value, but it is safe to do so.

Returns
the default cursor on success or NULL on failure; call getError for more information.
Thread safety
This function should only be called on the main thread.

sdl3-bindgen-sys notes

Expand
FFI safety
Safe foreign import of SDL_GetDefaultCursor. The unsafe flavor is getDefaultCursor .
C declaration
SDL_GetDefaultCursor, defined at SDL3/SDL_mouse.h 741:42

Since: 3.2.0

destroyCursor Source #

Arguments

:: Ptr SDL_Cursor
cursor
the cursor to free.
-> IO () 

Free a previously-created cursor.

Use this function to free cursor resources created with createCursor, createColorCursor or createSystemCursor.

Thread safety
This function should only be called on the main thread.
See also
createAnimatedCursor, createColorCursor, createCursor, createSystemCursor

sdl3-bindgen-sys notes

Expand
FFI safety
Unsafe foreign import of SDL_DestroyCursor. The safe flavor is destroyCursorSafe .
C declaration
SDL_DestroyCursor, defined at SDL3/SDL_mouse.h 760:34

Since: 3.2.0

destroyCursorSafe Source #

Arguments

:: Ptr SDL_Cursor
cursor
the cursor to free.
-> IO () 

Free a previously-created cursor.

Use this function to free cursor resources created with createCursor, createColorCursor or createSystemCursor.

Thread safety
This function should only be called on the main thread.
See also
createAnimatedCursor, createColorCursor, createCursor, createSystemCursor

sdl3-bindgen-sys notes

Expand
FFI safety
Safe foreign import of SDL_DestroyCursor. The unsafe flavor is destroyCursor .
C declaration
SDL_DestroyCursor, defined at SDL3/SDL_mouse.h 760:34

Since: 3.2.0

showCursor :: IO Bool Source #

Show the cursor.

Returns
true on success or false on failure; call getError for more information.
Thread safety
This function should only be called on the main thread.
See also
cursorVisible, hideCursor

sdl3-bindgen-sys notes

Expand
FFI safety
Unsafe foreign import of SDL_ShowCursor. The safe flavor is showCursorSafe .
Scalars
The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
C declaration
SDL_ShowCursor, defined at SDL3/SDL_mouse.h 775:34

Since: 3.2.0

showCursorSafe :: IO Bool Source #

Show the cursor.

Returns
true on success or false on failure; call getError for more information.
Thread safety
This function should only be called on the main thread.
See also
cursorVisible, hideCursor

sdl3-bindgen-sys notes

Expand
FFI safety
Safe foreign import of SDL_ShowCursor. The unsafe flavor is showCursor .
Scalars
The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
C declaration
SDL_ShowCursor, defined at SDL3/SDL_mouse.h 775:34

Since: 3.2.0

hideCursor :: IO Bool Source #

Hide the cursor.

Returns
true on success or false on failure; call getError for more information.
Thread safety
This function should only be called on the main thread.
See also
cursorVisible, showCursor

sdl3-bindgen-sys notes

Expand
FFI safety
Unsafe foreign import of SDL_HideCursor. The safe flavor is hideCursorSafe .
Scalars
The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
C declaration
SDL_HideCursor, defined at SDL3/SDL_mouse.h 790:34

Since: 3.2.0

hideCursorSafe :: IO Bool Source #

Hide the cursor.

Returns
true on success or false on failure; call getError for more information.
Thread safety
This function should only be called on the main thread.
See also
cursorVisible, showCursor

sdl3-bindgen-sys notes

Expand
FFI safety
Safe foreign import of SDL_HideCursor. The unsafe flavor is hideCursor .
Scalars
The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
C declaration
SDL_HideCursor, defined at SDL3/SDL_mouse.h 790:34

Since: 3.2.0

cursorVisible :: IO Bool Source #

Return whether the cursor is currently being shown.

Returns
true if the cursor is being shown, or false if the cursor is hidden.
Thread safety
This function should only be called on the main thread.
See also
hideCursor, showCursor

sdl3-bindgen-sys notes

Expand
FFI safety
Unsafe foreign import of SDL_CursorVisible. The safe flavor is cursorVisibleSafe .
Scalars
The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
C declaration
SDL_CursorVisible, defined at SDL3/SDL_mouse.h 805:34

Since: 3.2.0

cursorVisibleSafe :: IO Bool Source #

Return whether the cursor is currently being shown.

Returns
true if the cursor is being shown, or false if the cursor is hidden.
Thread safety
This function should only be called on the main thread.
See also
hideCursor, showCursor

sdl3-bindgen-sys notes

Expand
FFI safety
Safe foreign import of SDL_CursorVisible. The unsafe flavor is cursorVisible .
Scalars
The binding generation has mapped C scalars to native Haskell scalars for this function. Pointers and structs are untouched by this best-effort mapping. Higher-level bindings are expected to map structs and pointers as appropriate.
C declaration
SDL_CursorVisible, defined at SDL3/SDL_mouse.h 805:34

Since: 3.2.0